I just think this would be better if they got someone who could actually drive.
I had the same thought but ended up having way more fun with it because of it. Ben clearly hasn't been exposed to a lot of the "passive" knowledge that's absorbed from being around/driving/maintaining cars his entire life.
For example, disregarding the fuel/oil mixture at first. It's absolutely a realistic mistake someone would make and I found the video (and game) richer for it.
mbdoeden's comments